Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:00 2013

Optimize a model with 63 rows, 49 columns and 168 nonzeros
Presolve removed 21 rows and 21 columns
Presolve time: 0.00s
Presolved: 42 rows, 28 columns, 126 nonzeros
Variable types: 7 continuous, 21 integer (21 binary)
Found heuristic solution: objective 1758.0000000

Root relaxation: objective 4.240000e+02, 20 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0  424.00000    0   11 1758.00000  424.00000  75.9%     -    0s
     0     0  584.81936    0   10 1758.00000  584.81936  66.7%     -    0s
     0     0  596.70650    0    9 1758.00000  596.70650  66.1%     -    0s
     0     0  599.56479    0   12 1758.00000  599.56479  65.9%     -    0s
     0     0  599.56479    0   12 1758.00000  599.56479  65.9%     -    0s
     0     0  599.56479    0   12 1758.00000  599.56479  65.9%     -    0s
     0     2  602.14842    0   12 1758.00000  602.14842  65.7%     -    0s
*   12    12               9    1108.0000000  607.51148  45.2%   5.8    0s
*   31    20              10    1076.0000000  617.42801  42.6%   3.9    0s
*   34    17               9    1019.0000000  617.42801  39.4%   3.6    0s
*  114    45               8     955.0000000  761.40837  20.3%   3.6    0s
*  172    35               6     938.0000000  776.00000  17.3%   3.2    0s

Cutting planes:
  Implied bound: 10
  MIR: 35

Explored 315 nodes (897 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.380000000000e+02, best bound 9.380000000000e+02, gap 0.0%